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authorChristoph Hellwig <hch@lst.de>2009-05-05 15:40:36 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2009-06-11 21:36:07 -0400
commit6cfd0148425e528b859b26e436b01f23f6926224 (patch)
tree60e3257053554ff198fe5825e6f12a00c3b4422a /fs/befs/linuxvfs.c
parenta9e220f8322e2b0e0b8903fe00265461cffad3f0 (diff)
push BKL down into ->put_super
Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/befs/linuxvfs.c')
-rw-r--r--fs/befs/linuxvfs.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 76afd0d6b86..9367b6297d8 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -737,6 +737,8 @@ parse_options(char *options, befs_mount_options * opts)
static void
befs_put_super(struct super_block *sb)
{
+ lock_kernel();
+
kfree(BEFS_SB(sb)->mount_opts.iocharset);
BEFS_SB(sb)->mount_opts.iocharset = NULL;
@@ -747,7 +749,8 @@ befs_put_super(struct super_block *sb)
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
- return;
+
+ unlock_kernel();
}
/* Allocate private field of the superblock, fill it.